Grindstone mounting



W. E. ROSEBUSH.

GRINDSTONE MOUNTING.

APPLICATION FILED APR.6, I921.

1,405,385. I a nted Jan- 31,1922.

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mosses.

Application filed April 6,

curely hold the grindstone in position on.

the-shaft or spindle and to allow of con veniently and quickly releasingand removing a worn out grindstone and replacing the same by a new one.

Another object is to permit of removing a worn out grindstone withoutbreaking it up while held in the mounting.

Another object is to permit of readily reusing a worn out largegrindstone of one pulp mill in a pulp mill requiring a stone of lessdiameter.

Another object is to provide a mounting which is very simple and durablein construction and not liable to get easily out of order.

WVith these and other objects in view, the invention consists of certainnovel features of construction as hereinafter shown and described andthen specifically pointed out in the claims.

A practical embodiment of the invention is represented in theaccompanying drawings forming a part of this specification, in whichsimilar characters of reference indicate corresponding parts in bothviews.

Figure 1 is a front elevation of the im-* proved grindstone mounting,with parts shown in section; and

Figure 2 is a side elevation of the same with the shaft or spindle shownin section.

The shaft or spindle 10 is provided with right and left hand screwthreads 11 and 12 on which screw bushings l3 and 14 carrying removabledished flanges 15 and'16 bearing against the sides of the grindstone 17to be held in position on the shaft or spindle 10. Each of theflanges'15 and 16 is removably fitted on the corresponding bushing 13 or14 and rotates with the same, preferably by the use of a key 20. Each ofthe-bushings 13 and 14 is preferably made in two or more parts to permitof readily placing the bush- 1921. Serial 170,458,937.

ing in position on the screw threads 11 and I Specification of IiettersPatent. gin. v

12 or to remove the same therefrom after the corresponding flange 15 Or16 has been removed from the bushing.

Either or both of the bushings 13 and 14 are provided with an annulargroove 21 into which fits a collar or a ring 22 made in sections havinglugs 23 fastened together by bolts 24. The collar 0r ring 22 projects asufficient distance beyond the peripheral face of the correspondingbushing 13 or 14 to provide an abutment for the outer face of thecorresponding flange 15 or 16. Thus the flange 15 is supported on thecorrespond ing bushing13 or 14 and is held against the grindstone by thecollar or ring 22 on screwin up the corresponding bushing 13 or 14.

TVhen it is desired to remove the grindstone 17 it is only necessary toremove the bolts 24 to allow of removing the corre-. sopnding collar orring 22 thus releasing the flanges 15 or 16 of its outward strain. Thebushing 13 or 14 can now be readily unscrewed from the screw threads 11or 12and removed from the shaft, but in case the bushing does notunscrew easily it is only necessary to remove the key 20 to allow ofsliding the flange off the bushing endwise.

I The bushing being in two or more parts can by a new one withoutrequiring breaking up of the stone and allowing the use of such removedstone in a pulp mill requiring a grindstone of smaller diameter.

Having thus described my invention, I claim as new and desire to secureby Letters Patent:

1. A grindstone mounting comprising a flange adapted to engage one sideof the grindstone, a sectional bushing on which the said flange isremovably mounted, and means removably mounted on the said bushing forclamping the sections thereof together and against which butts the outerside of the said flange.

2. A grindstone mounting comprising a flange, a sectional bushingremovably carry- V worn can be readily remqved and replaced 7 ing thesaid flange and held on the grindstone shaft the said bushing having aperipheral groove adjacent the flange, and a sectional collar held inthe said groove and against which butts the outer side of the saidflange.

3. A grindstone mounting comprising a shaft having a threaded portion, asectional bushing screwing on the said threaded shaft portion and havingan annular groove a flange removably fitting on the said bushing,

outer side of the said flange. v

WALDO E. ROSEBUSH.

